(a d if g is a group of all 2 x 2 matrices where (ab - bc) + 0 and a, b, c, d are integers modulo c 3, relative to matrix multiplication, then what is the numbe

order of z5xZ5 is 25 we know order of subgroup divided order of group .so we calculate divisor of 25 which are 6 so z5xz5 has 6 subgroup

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